The guy who wrote "Oh Yeah" for "Ferris Bueller's Day Off" has built up a $175 million fortune by investing his royalties. Funny thing is, he's never even seen the movie. His name is Dieter Meier, and he was once in a pop band called Yello, which originally released the tune. He invested in train and currency companies to get where he is now. Not bad for a conceptual artist from Switzerland! Here's his official page. And here's the song. Enjoy: